com.facebook.presto.parquet.batchreader

Class BinaryFlatBatchReader

java.lang.Object

com.facebook.presto.parquet.batchreader.BinaryFlatBatchReader

All Implemented Interfaces:

ColumnReader

public class BinaryFlatBatchReader
extends Object
implements ColumnReader

Field Summary

Fields

Modifier and Type	Field and Description
protected FlatDefinitionLevelDecoder	definitionLevelDecoder
protected Field	field
protected int	nextBatchSize
protected int	remainingCountInPage
protected ValuesDecoder.BinaryValuesDecoder	valuesDecoder

Constructor Summary

Constructors

Constructor and Description
BinaryFlatBatchReader(RichColumnDescriptor columnDescriptor)

Method Summary

Modifier and Type	Method and Description
void	init(PageReader pageReader, Field field, org.apache.parquet.internal.filter2.columnindex.RowRanges rowRanges)
boolean	isInitialized()
void	prepareNextRead(int batchSize)
ColumnChunk	readNext()
protected boolean	readNextPage()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

field

protected Field field

nextBatchSize

protected int nextBatchSize

definitionLevelDecoder

protected FlatDefinitionLevelDecoder definitionLevelDecoder

valuesDecoder

protected ValuesDecoder.BinaryValuesDecoder valuesDecoder

remainingCountInPage

protected int remainingCountInPage

Constructor Detail

BinaryFlatBatchReader

public BinaryFlatBatchReader(RichColumnDescriptor columnDescriptor)

Method Detail

isInitialized

public boolean isInitialized()

Specified by:

isInitialized in interface ColumnReader

init

public void init(PageReader pageReader,
                 Field field,
                 org.apache.parquet.internal.filter2.columnindex.RowRanges rowRanges)

Specified by:

init in interface ColumnReader

prepareNextRead

public void prepareNextRead(int batchSize)

Specified by:

prepareNextRead in interface ColumnReader

readNext

public ColumnChunk readNext()

Specified by:

readNext in interface ColumnReader

readNextPage

protected boolean readNextPage()